◎ 题干
—I _____ the book to the library.
—When ______ you _____ it?

A. has returned; did; return
B. have returned; have; returned
C. returned; did; return
D. returned; have; returned
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—I_____the book to the library.—When ______you _____it?[ ]A. has returned; did; return B. have returned; have; returned C. returned; did; return D. r…”主要考查了你对  【一般过去时】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。